JPH11107238A - Structural wall for slope and execution method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical structural wall for a slope, which can be installed simply without cutting and back-filling the face of a slope in a steped shape and in which the mutually contacted surfaces of the adjacent stone-filled cylinders are formed in one surface. SOLUTION: L-shaped surface-net members 15 integrally having vertically extended rear sections 15a and horizontally extended base sections 15b are mounted along the face of a slope 11, and side face nets 16 and front nets 17 are set up onto the side faces and fronts of the surface-net members 15. The structural wall 10A, in which the top faces of stone-filled cylinders 12 at lower steps are covered with the base sections 15b of the stone-filled cylinders 12 at upper steps, is obtained by repeating a process, in which the insides of the stone-filled cages 12 surrounded by these surface-net members 15, side face nets 16 and front nets 17 are filled with fillers such as soil and sand, gravel or the like, in a required number of steps.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sloping structure wall for protecting sloping land, revegetation, etc. in a mountain, a valley, a road, a residential area, a river bank, or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, this type of structural wall for a sloping land which is installed for protection of a sloping land in a mountain, a valley, a road, a residential area, a riverbank, etc. Insert the stone basket 1 containing the filling material such as earth and sand and rubble into the slope 2
Is known in which a plurality of steps are stacked in a stair-like shape.
Such a structural wall has a good water permeability because the stone stuffing basket 1 constituting the structure wall is made of a wire mesh and stuffed with earth and sand, gravels, etc. Not only can water be drained quickly, but also the friction between the soil and the back soil is large, and the soil retaining effect that suppresses landslides is superior.

[0003] However, since the above-mentioned conventional structural wall is formed by stacking the stone-filled baskets 1 each having the shape of a rectangular parallelepiped one by one, the slope 2 is previously set up with the stone-filled baskets 1. It is cut in steps according to the height, and is stacked by placing the rear end of the stone basket 1 on each step 2a in order, or as shown in FIG. 6, the slope 2 is inclined. Each time the stone basket 1 for one stage is installed, the earth and sand 3 behind the stone basket 1 must be back-filled, and the construction is very troublesome. In addition, since the wire mesh overlaps the surfaces where the upper and lower stone baskets 1 and 1 are in contact with each other, there is a problem that unnecessary use of the wire mesh is increased, the cost is increased, and the economy is uneconomical.

[0004]

SUMMARY OF THE INVENTION The technical problem of the present invention is that the slope can be easily installed in accordance with the slope of the slope without cutting or backfilling the slope in a stepwise manner. An object of the present invention is to obtain a structural wall for sloping land and a method of constructing the same, in which the overlapping surfaces of the stone baskets are unified and the economic efficiency is enhanced.

[0005]

In order to solve the above-mentioned problems, a structure wall for an inclined ground according to the present invention comprises a back portion extending vertically along a slope and a bottom portion extending forward from a lower end of the back portion. A plurality of surface mesh members that are folded so as to have a vertical surface along the slope; formed between the bottom and back portions of the lower surface mesh member and the bottom surface of the upper surface mesh member Side nets and front nets that close both sides and the front of the space that has been made, and form a stone basket for filling with filler such as earth and sand or rubble in cooperation with these parts. It is assumed that.

[0006] In the present invention, it is desirable that the rear surface portion of the uppermost screen net member is horizontally extended and disposed along the road shoulder.

[0007] In one specific embodiment of the present invention, any of the mesh members has a lateral length spanning a plurality of stone baskets, and is provided by a partition net attached at an intermediate position. It is divided into individual stone baskets.

Further, the construction method according to the present invention is directed to a method of constructing a surface mesh member which is bent so as to have a back portion extending vertically along a slope and a bottom portion extending forward from a lower end of the back portion. Installing the side net and the front net with the side net and the front net; the inside of a stone basket composed of the above net net and the side net and the front net and having an open top And filling a filler such as earth and sand or rubble; repeating the required number of steps, thereby covering the upper surface of the lower stone stuffing basket with the bottom part of the mesh member in the upper stone stuffing basket in order. It is characterized by stacking a plurality of stages.

[0009] In the construction method of the present invention, the inside of the stone-filled space surrounded by the above-mentioned mesh member, the side mesh and the front mesh,
A step of partitioning into a plurality of parts by an intermediate partition net can be included.

According to the present invention having the above structure, the mesh member forming the bottom portion and the back portion of the stone basket is bent vertically at an angle such that the back portion follows the slope of the slope. In addition, since the upper and lower mesh members are closed with the front mesh and the side mesh to fill with earth and stone, the slope is cut in steps, and every time a single-stage stone basket is installed. The stone-filled basket can be easily and quickly stacked along the slope of the slope without backfilling the earth and sand behind the stone-filled basket.

In addition, since the bottom of the upper mesh member also serves as the upper mesh of the lower stone basket, and the overlapping surfaces of the upper and lower stone baskets are unified, wasteful use of the net-like material is prevented. Very economical without.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a first embodiment of a sloped wall according to the present invention. The structural wall 10 </ b> A according to the embodiment includes the stone basket 1 along the slope 11.
2 is stacked up and down in a plurality of stages, and the stone baskets 12 are stacked in the following manner.

That is, as can be seen from FIG. 2, one screen net member 15 having a lateral length extending over a plurality of stone baskets.
To a rear portion 15a rising upward and the rear portion 15a
Is bent into a substantially L-shape so as to form a bottom surface portion 15b extending horizontally forward from the lower end of the rear portion 1.
5a is laid along the slope 11 at the installation location of the lowermost stone basket. Next, a side net 16 and a front net 17 are attached to both side surfaces and a front surface of the net net member 15, and one stone filling space surrounded by the face net 15 and the side net 16 and the front net 17 is formed. Alternatively, a plurality of partitioning nets 18 are divided into a plurality of portions, so that a plurality of stone stuffing baskets 12 each having an open upper surface are arranged side by side, and the lowermost stone stuffing basket linked body 12a is formed.
To form Each of the stone baskets 12 is filled with filler such as earth and sand or gravels.

Next, the second-stage mesh member 15 is bent and placed in a substantially L-shape on the lowermost stone-meshed linked body 12a filled with the filling material. 15 is connected to the side net 16 and the front net 17 of the lowermost stone basket connecting body 12a, the back 15a of the net mesh member 15, and the partition net 18.
Thus, the upper surface of each of the lowermost stone stuffing baskets 12 is covered by the bottom surface portion 15b of the second stage stone stuffing basket 12, respectively.

As in the case of forming the lowermost stone basket connecting member 12a, a side net 16 and a front net 17 are attached to both side surfaces and a front surface of the second net mesh member 15, and the inside thereof is formed. Is divided into a plurality of portions by one or a plurality of partitioning nets 18 so that the second stage
Is formed, and each stone basket is filled with a filler such as earth and sand or gravels.

Hereinafter, by repeating the same steps for a required number of steps, a structural wall having a structure in which the upper surface of the lower stone basket 12 is covered by the bottom surface 15b of the upper stone basket 12 is formed. In this case, it is desirable that the top surface mesh member 15 has the rear portion 15 a extending horizontally along the road shoulder 20.

By arranging the structural wall in this manner, the slope 11 is cut in a stepped manner as in the prior art, and the earth and sand behind the stone stuffing basket is removed every time a one-stage stone stuffing basket is installed. The stone basket can be easily and quickly stacked along the slope of the slope 11 without backfilling. In addition, by forming the face net member 15 and the front face net 17 to have a length extending over the plurality of stone baskets 12 and partitioning the inside with the partition nets 18, the individual stone baskets can be horizontally placed. The installation work is significantly simplified as compared with the case where they are installed side by side.

The structural wall 10A has the bottom surface 15b of the upper stone stuffing basket 12 covered with the upper surface of the lower stone stuffing basket 12 so that the bottom surface 15b of the upper stone stuffing basket 12 is lower. It will also serve as the upper surface net of the basket 12, and as a result,
Since the overlapping surfaces of the upper and lower stone baskets 12 and 12 are unified by a common screen net, there is no wasteful use of the net-like material, which is very economical.

FIG. 3 shows a second embodiment of the present invention.
The structural wall 10B of the second embodiment is different from the structural wall 10A of the first embodiment in that the front net 17 is connected to the bottom portion 1b of the lower stone packing basket 12 from the tip of the bottom portion 15b of the upper stone packing basket 12.
5b, while the front net 17 is attached obliquely between the tips of the bottom portions 15b, 15b of the upper and lower stone baskets 12, 12. This is different from the first embodiment. Accordingly, in the case of the first embodiment, the front surface of the structural wall has a stepped shape as a whole, whereas the front surface of the structural wall of the second embodiment is an inclined surface substantially parallel to the slope 11. I have.

In each of the above-described embodiments, each of the mesh members 15 and the front mesh 17 of each step has a lateral length extending over a plurality of stone baskets. 1
Although it is divided into two, the horizontal length of the surface net member 15 and the front net 17 may be a length corresponding to each stone stuffing basket. Alternatively, a mixture of a long one and a short one can be used. In any case, the adjacent net member 15 and the front net 17 are connected to each other as necessary.
It is desirable that the side nets 16 located between 2 and 12 be shared. Further, the left and right side nets 16 and 16 and the front net 17 can be formed of a single net material.

The structural walls 10A and 10B of the above embodiments are
Not only can they be installed linearly, but they can also be easily installed in a curved state. In particular, it is suitable for installation along natural terrain. FIG. 4 shows a plan view of a structural wall installed in a river basin along the river in a curved state. When the structural wall is installed in such a curved place, in a curved portion having a large curvature, a short length of the screen mesh member 15 is used to connect them in small increments, or the front end of the adjacent screen mesh member or By taking measures such as partially overlapping the rear end, the above-mentioned structural wall can be easily and reliably installed even if the terrain is complicatedly curved. It should be noted that it is preferable to use the surface mesh member 15 having a length as long as possible in the straight line portion in order to reduce the number of work steps and to perform the construction simply and inexpensively. The structural walls installed in this manner have the stone stuffing baskets 12 of each step vertically and horizontally integrated and arranged in a contour line, so that not only their connection strength is extremely high, but also water passage (drainage).
It excels in functions and retaining functions, and is more stable due to water pressure and the like.

In general, a diamond-shaped wire mesh is preferably used as a mesh material for forming the above-mentioned mesh member 15, the side mesh 16, the front mesh 17, and the partition mesh 18. A rigid synthetic resin net or the like can also be used.

[0023]

According to the present invention, the mesh member forming the bottom portion and the back portion of the stone basket is bent at an angle such that the back portion is along the slope of the slope, and stacked vertically. Since the front net and the side net are attached between the upper and lower net mesh members and filled with earth and stone, the slope is cut in steps,
The stone baskets can be easily and quickly stacked along the slope of the slope without backfilling the earth and sand behind the stone baskets each time a single-stage stone basket is installed. In addition, since the bottom of the upper mesh member also serves as the upper mesh of the lower stone basket, the overlapping surfaces of the upper and lower stone baskets are unified, so there is no waste of mesh material. It is economical.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment of a structural wall according to the present invention, with a filler omitted.

FIG. 2 is a perspective view of a main part of the structural wall of FIG.

FIG. 3 is a sectional view showing a second embodiment of the structural wall according to the present invention.

FIG. 4 is a partial plan view showing a state where a structural wall is installed on the coast of a river.

FIG. 5 is a sectional view showing an example of a conventional structural wall.

FIG. 6 is a sectional view showing another example of a conventional structural wall during construction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10A, 10B Structural wall 11 Slope 12 Stone basket 15 Surface net member 15a Back surface 15b Bottom surface 16 Side net 17 Front net 18 Partition net 20 Road shoulder

Claims (5)

[Claims] 1. A plurality of bent back and rear portions extending vertically along a slope, and a bottom portion extending forward from a lower end of the back portion and vertically stacked along the slope. A side mesh member; a side surface and a front surface of a space formed between a bottom surface and a back surface of the lower surface mesh member and a bottom surface portion of the upper surface mesh member are closed, and in cooperation with these components; A structural wall for sloping land, comprising: a side net and a front net forming a stone basket for filling a filler such as earth and sand or rubble. 2. The structural wall according to claim 1, wherein the rear surface of the uppermost mesh member extends horizontally and is disposed along the road shoulder. 3. The structural wall according to claim 1, wherein
At least one of the mesh members has a lateral length extending over a plurality of stone baskets, and is divided into individual stone basket parts by a partition net attached at an intermediate position. What to do. 4. A step of installing a surface mesh member bent along a slope so as to have a back surface extending vertically along the slope and a bottom surface extending forward from a lower end of the back surface; A step of closing the side and front faces of the screen mesh member with the side screen and the front screen; sediment, rubble, etc., inside a stone basket composed of the screen screen member, the side screen and the front screen and having an open top surface; By filling the required number of stages;
A method for constructing a sloping ground structural wall, comprising stacking a plurality of stone stuffing baskets while sequentially covering the upper surface of a lower stone stuffing basket with the bottom portion of a surface mesh member of the upper stone stuffing basket. 5. The construction method according to claim 4, wherein the step of partitioning the inside of the stone-filled space surrounded by the face netting member, the side face net and the front face net into a plurality of parts by an intermediate partition net. Characterized by including.